111354486931 has 2 divisors, whose sum is σ = 111354486932. Its totient is φ = 111354486930.

The previous prime is 111354486863. The next prime is 111354486937. The reversal of 111354486931 is 139684453111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111354486931 - 2¹⁵ = 111354454163 is a prime.

It is a super-2 number, since 2×111354486931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111354486937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55677243465 + 55677243466.

It is an arithmetic number, because the mean of its divisors is an integer number (55677243466).

Almost surely, 2^111354486931 is an apocalyptic number.

111354486931 is a deficient number, since it is larger than the sum of its proper divisors (1).

111354486931 is an equidigital number, since it uses as much as digits as its factorization.

111354486931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 46.

It can be divided in two parts, 1113544 and 86931, that added together give a triangular number (1200475 = T₁₅₄₉).

The spelling of 111354486931 in words is "one hundred eleven billion, three hundred fifty-four million, four hundred eighty-six thousand, nine hundred thirty-one".